SUS Standard Seamless Stainless Steel Pipe For Shipbuilding Austenitic Cr17n6Ni5N

 

 

chemical component: 301 seamless stainless steel pipe

C ≤ 0.15                Mn ≤ 2.00                 P≤ 0.065

S ≤ 0.030               Ni ~ 6.0 - 8.0            Cr~ 16.0 - 18.0

Si≤ 1.00

 

301 stainless steel pipe comparison table:

o	China GB			Japan	America		Korea	EU BS EN	India	Australia	China Taiwan
	Old brand	new brand (07.10)		JIS	ASTM	UNS	KS		IS	AS	CNS
austenitic stainless steel
1	1Cr17n6Ni5N		12Cr17Mn6Ni5	SUS201	201	S20100	STS211	1.4372	10Cr17Mn6Ni4N20	201 - 2	201
2	1Cr18n8Ni5N		12Cr18Mn9Ni5	SUS202	202	S20200	STS212	1.4373	-	202
3	1Cr17i7		12Cr1Ni7	SUS301	301	S30100	STS301	1.4319	10Cr17N7	301	311

 

Applications:

 

widely used in petroleum, Foodstuff, chemical industry, construction, electric power, nuclear energy, biotechnology, machinery, papermaking, shipbuilding, boiler fields etc

 

Standard	ASTM, GB, EN, SUS, DN
Surface	2B, BA, NO.1, NO.4, NO.8, 8K, mirror, etc
Thickness	1mm - 150mm
OD	6mm - 2500mm
Length	2m, 4m, 6m, 8m or at your request
Tolerance	a)Outer Diameter: +/ - 0.2mm b)Thickness: +/ - 0.02mm c)Length: +/ - 5mm
Test	squash test; extended test; water pressure test; crystal rot test; heat treatment; NDT

Performance:

301 stainless steel yield strength (N/mm2)≥ 205

strength of extension≥ 520

ductility (%)≥ 40

Hardness HB ≤ 187 HRB≤ 90 HV ≤ 200

density7.93 g?cm - 3

specific heat c (20℃)0.502 J? (g?C) - 1

heat conductivityλ /W (m?℃) - 1 In the following temperature/℃

20 100 500

12.1 16.3 21.4

coefficient of linear expansionα/(10 - 6/℃) (in the following temperature/℃)

20～100 20～200 20～300 20～400

16.0 16.8 17.5 18.1

specific resistance 0.73 Ω ?mm2?m - 1

melting point   1398～1420℃

strength of extension σ b (MPa): ≥ 520

offset yield strength σ 0.2 (MPa): ≥ 205

Elongation δ 5 (%): ≥ 40

percentage reduction of area ψ (%): ≥ 60

Hardness ≤ 187HB; ≤ 90HRB; ≤ 200HV

 

heat treatment regime

 

heat treatment regime: Solid solution of 1010 ~ 1150 ℃ cold fast

metallographic structure: The organization characteristics of austenite size

 

In the air or chemical corrosion resistant to corrosion medium of a kind of high alloy steel.The surface of the stainless steel is a beautiful and good corrosion resistance.Don' t have to color after plating surface treatment, etc.Inherent in the stainless steel surface properties.A kind of use in a variety of steel.Often referred to as stainless steel.On behalf of the performance of 13 chrome steel, 18 - 8 chrome - nickel steel high alloy steel

From the perspective of metallography analysis, Because the stainless steel containing chromium and make the surface form of very thin chromium film.This film is isolated from intrusion in the steel corrosion of oxygen.In order to maintain the inherent corrosion resistance of stainless steel, must contain more than 12% of the chrome steel.Stainless steel 3041 is a generality.It is widely used to make requires good comprehensive performance, corrosion resistance and formability) equipment and parts.301 is the most widely used stainless steel, heat - resistant steel.It used in food production equipment, wast, general chemical equipment, nuclear power, etc.

301 (17 cr - ni - 7) carbon materials: Compared with the 304 steel, Cr, Ni is less.

 

Competitive Advantage:

 

a) not easily rust; acid resistance and corrosion resistance;

b) widely used in light and heavy industry, food making, architecture, shipping, paper and medicine industry;

c)  large and stable supply capability;

d)  Prompt delivery and rich experience in exporting.

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